Apple Watch - Reset Sync Setting
Here's how to reset the syncing of the calendar and the contacts on your Apple Watch.
Resetting sync data erases all contacts and all calendar data from your Apple Watch® before re-syncing from your iPhone®.
- From your iPhone, open theWatch app.
- From the My Watch tab (lower-left), tapGeneral.
- TapReset.
- TapReset Sync Data.